Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
indefinite amount of time
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "indefinite amount of time" is correct and usable in written English.
It can be used when referring to a time period that is not specified or is uncertain. Example: "The project will take an indefinite amount of time to complete due to unforeseen circumstances."
✓ Grammatically correct
News & Media
Academia
Science
Formal & Business
Wiki
Alternative expressions(20)
down the line
unspecified period of time
tremendous amount of time
fixed amount of time
immense amount of time
undetermined period
long-term horizon
undetermined period of time
uncertain period of time
in the long run
unknown period of time
extended period
specified amount of time
undetermined amount of time
fixed period of time
indeterminate period of time
indefinite period of time
extended timeframe
protracted duration
unspecified duration
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
A stone simply lies on the ground for an indefinite amount of time.
Academia
It's a burden knowing they have to keep things in order for an indefinite amount of time.
News & Media
Under law, the judge is allowed an indefinite amount of time to accept or reject prosecutors' recommendations.
News & Media
"People in receipt of those letters need to have a reasonable, if not an indefinite, amount of time to reply".
News & Media
He said he had given witnesses a reasonable but not indefinite amount of time to respond and the judgment on what was reasonable depended on individual circumstances.
News & Media
Depending on the scheduling of Nelson's treatment, he could join the team on its six-game road trip before missing an indefinite amount of time.
News & Media
Another, Gov. Bill Richardson of New Mexico, said: "Leaving behind tens of thousands of troops in Iraq for an indefinite amount of time is nothing new.
News & Media
The rest of the applications were either denied or left "pending" for an indefinite amount of time, most for more than a year since being filed.
Academia
In other words, work will no longer be confined to employment contracts that require people to work at least eight hours a day for an indefinite amount of time for a corporation.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
"We received offers for free office space for indefinite amounts of time today".
News & Media
Prisoners can be held for indefinite amounts of time, depending on their offenses and gang affiliations.
News & Media
Expert writing Tips
Best practice
When using "indefinite amount of time", ensure the context clearly communicates the uncertainty of the duration. Avoid vagueness by providing any known boundaries or related conditions, even if the exact timeframe remains unknown.
Common error
Don't confuse "indefinite amount of time" with an infinite duration. Indefinite simply means the duration is not yet determined or specified, not that it will last forever. Make sure your context accurately reflects this distinction.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "indefinite amount of time" functions as an adverbial phrase, modifying verbs or clauses by specifying the duration of an action or state. Ludwig examples demonstrate its use to indicate a period without a set end.
Frequent in
News & Media
63%
Academia
14%
Vice
10%
Less common in
Science
7%
Wiki
3%
Formal & Business
3%
Ludwig's WRAP-UP
The phrase "indefinite amount of time" is a common and grammatically correct way to describe a duration that is unspecified or uncertain. As indicated by Ludwig, this phrase effectively communicates a lack of precise knowledge regarding the length of an event. Its neutral register allows for use across various contexts, including news, academia, and general communication. Remember to use this phrase when you need to indicate that a duration is not fixed or known, and avoid confusing it with the concept of infinity. Consider alternatives like "undetermined period" or "unspecified duration" for nuanced expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
undetermined period
Focuses on the lack of a set end point, simplifying the original phrase.
unspecified duration
Highlights the absence of a defined length.
unknown timeframe
Emphasizes the uncertainty regarding the timing or schedule involved.
protracted duration
Implies a long, extended period.
extended period
Focuses on the length of time involved, without specifying its limits.
unfixed term
Emphasizes the lack of a set end date or condition.
open-ended timeframe
Highlights that there is no predetermined conclusion.
unforeseeable future
Shifts the focus to the unpredictability of events.
in the long run
Implies a distant or unspecified future point.
down the line
Suggests a future point without a clear date.
FAQs
How can I use "indefinite amount of time" in a sentence?
You can use "indefinite amount of time" to describe situations where the duration is unknown or not specified. For example, "The project is postponed for an indefinite amount of time" or "The road will be closed for an indefinite amount of time due to construction".
What's a good alternative to "indefinite amount of time"?
Alternatives include "undetermined period", "unspecified duration", or "unknown timeframe". The best choice depends on the specific context.
Is it better to say "indefinite period" or "indefinite amount of time"?
Both "indefinite period" and "indefinite amount of time" are grammatically correct and can be used interchangeably. The choice depends on personal preference and the flow of your writing.
Does "indefinite amount of time" imply a very long duration?
While "indefinite amount of time" indicates an unspecified duration, it doesn't necessarily mean a very long one. It simply means the duration is not fixed or known. The actual length could be short, medium, or long, depending on the situation.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested